[mythtv] New mythgallery gl transition patch (zooming blend)

[Stephen Boddy]

On Thursday 20 October 2005 04:14, Mark Dobossy wrote:
> On Oct 19, 2005, at 8:52 PM, Stephen Boddy wrote:
> > On Wednesday 19 October 2005 21:23, Colin Guthrie wrote:
> >> Mark Dobossy wrote:
> >>> If any mythgallery users out there could please give my patch a
> >>> whirl,
> >>> and give some feedback, I'd appreciate it.  It is simply a  modified
> >>> version of the blend (gl) transition, that zooms/fades out  the
> >>> previous
> >>> picture, as the new picture fades in.  The patch file  adds the new
> >>> transition- it will be in the mythgallery settings, and  is
> >>> called "zoom
> >>> blend (gl)".  The patch is attached to ticket #490:
> >>> http://cvs.mythtv.org/trac/ticket/490 .  Any feedback would be
> >>> great!
> >>
> >> Not currently up-to-date with mythgallery or myth generally with the
> >> latest svn versions so can't give feedback but this is the best blend
> >> ever invented.
> >>
> >> If you want to give it it's proper name, I think it is called the
> >> "Ken
> >> Burns Effect"...
> >>
> >> http://en.wikipedia.org/wiki/Ken_Burns#Ken_Burns_Effect
> >>
> >> Probably worth editing the wiki to say MythTV will have it by v
> >> 0.19 :)
> >>
> >> Col.
> >
> > Slightly OT, but has anyone else noticed the slightly ugly step
> > change in the
> > background colour with glblend? If your pictures aspect ratio
> > doesn't match
> > your display (i.e. a 4:3 image on a 16:9 display) as the images
> > cross fade,
> > the background fades - in my case - from black to a mid-grey. Then it
> > suddenly snaps back to black. Rather spoils the effect...
> > --
> > Steve Boddy
>
> Steve-
>
> Yes I had noticed this.  I'm not sure why, but the blend routine puts
> a 20% grey quad behind the fading image.  Attached is a diff that
> changes this to black, so you dont see the grey flash at all.  Hope
> this helps. :)
>
> -Mark

Blimey! Thanks Mark. I wasn't so much looking for a fix, but a confirmation 
that I wasn't doing something dumb, and that it was a real issue.

Much appreciated.

-- 
Steve Boddy